A signal is given by cos 24, where is a baseband signal whose spectrum is given by , || < 0, otherwise (a) Sketch the spectrum of and specify its bandwidth. (b) Find the 3-dM bandwidth of . (c) In order to recover from , a student passes the signal through a low pass filter with cut off frequency of 2Hz. Is this recovery satisfactory

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?

Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.